NCT01059006

Peripheral PresbyLASIK Using the Allegretto Wavelight System For The Treatment of Presbyopia

• Status: Withdrawn
• Phase: N/A
• Study type: Interventional
• Enrollment: 0 (actual)
• Sponsor: University of California, San Diego · Academic / Other
• Sex: All
• Age: 35 Years – 80 Years
• Healthy volunteers: Accepted

Summary

The aim of this study is to analyze the results of PresbyLASIK performed using the wavefront-optimized LASIK for the treatment of presbyopia on low hyperopic and low myopic patients with astigmatism. Visual performance will be assessed using clinical outcome measures of the following: refraction, near, intermediate and distance visual acuity, stereoacuity and contrast sensitivity. Questionnaires will also be used to evaluate how the patient's vision is before and after surgery.

Detailed description

Presbyopia is a physiologic change related to age in which there is reduction in the eye's ability to focus in order to obtain clear vision for near distance. At approximately age 40 the range of accommodation begins to decrease and there is a diminishing capacity of the eye to focus on the nearest point it can focus on. This makes the need for corrective lenses a necessity in order to read at near as well as focus at an intermediate distance. Presbyopia correction is one of the most frequently discussed topics in refractive surgery today. The idea of a creating a multifocal cornea using refractive surgery has sparked tremendous interest in finding a solution for this growing population throughout the world, especially amongst surgeons and the ophthalmic industry PresbyLASIK essentially involves the creation of a multifocal surface able to correct any visual defect for distance while simultaneously allowing freedom from near spectacle dependency in presbyopic patients. PresbyLASIK is currently being offered routinely to patients in the San Diego area, across the country as well as in numerous centers around the world. Conclusions from this study would serve as a guide for keratorefractive surgeons, who are pursuing peripheral PresbyLASIK, in determining the preoperative patient features in order to achieve the best outcome using the Wavelight-Allegretto System.

Conditions

• Refractive Error
• Presbyopia

Interventions

Type	Name	Description
PROCEDURE	PresbyLASIK	PresbyLASIK essentially involves the creation of a multifocal surface able to correct any visual defect for distance while simultaneously allowing freedom from near spectacle dependency in presbyopic patients.

Timeline

• Start date: 2010-01-01
• Primary completion: 2010-07-01
• Completion: 2010-07-01
• First posted: 2010-01-29
• Last updated: 2011-08-05